Those numbers don't make sense.....sorry.
It doesn't really make that big of a difference.
It doesn't really make that big of a difference.
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plumbing questions
- Thread starter jpnasty
- Start date
This would make a wonderful test at the next meeting.
It could be done easily with a stock tank and the same pump,,,,,,different sch. pvc.We could go for footage verticle and see what happens.
Set your timers...
It could be done easily with a stock tank and the same pump,,,,,,different sch. pvc.We could go for footage verticle and see what happens.
Set your timers...
newenglandreef
Non-member
Just pulled them straight from the book, friction actually dropped with Sch. 40 at 900 GPH.
I'm looking at the same book and can verify that is what it says.
Think of it this way;
-take a regular straw and a big fat macdonalds straw.
-Now gently blow through each, you feel a hint more restriction on the normal thinner straw but they are not all that different.
-Now blow as hard as you can, you would feel a big difference.
On another angle, when you look at the measurements on paper the ID doesn't seem all that different. Now look at this pic, sch 40 3/4", sch 80 1", and sch40 1" . (note that the ID on the sch 80 1" is closer to the ID of the sch40 3/4" than it is to the sch40 1")
Think of it this way;
-take a regular straw and a big fat macdonalds straw.
-Now gently blow through each, you feel a hint more restriction on the normal thinner straw but they are not all that different.
-Now blow as hard as you can, you would feel a big difference.
On another angle, when you look at the measurements on paper the ID doesn't seem all that different. Now look at this pic, sch 40 3/4", sch 80 1", and sch40 1" . (note that the ID on the sch 80 1" is closer to the ID of the sch40 3/4" than it is to the sch40 1")
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"Water Weight" in the connecting pipes has nothing to do with flow, the fact is the larger the pipe the more flow, its all about the depth. The pump works against pressure (PSI) just as if you jumped into a pool at 10 ft or a large lake at 10 ft the pressure would be the same.
Jim
